Pipe-bowl reamer



jA/VENTOE BY TTOENEY steated Bee 5; 192

ALBION M. GOLDSTEIN, OF ST. LOUIS, MISSOURI.

PIPE-BOWL REAMER.

Application filed member 2, i925. serial No. c6216.

'lhisinvention relates to a certain new. and useful improvement inpipe-bowl reamers.

My invention has for its chief object the provision of a reamer whichmay be inexpensively manufactured, which is conveniently usable, whichis self or automatically adjustable to fit ,pipe bowls of differentsizes and diameters, and which is efiicient in the performance .of itsintended functions.

And with the above and other objects, in view, my invention resides inthenovel features of 'form, construction, arrangement, and combinationof parts hereinafter described and pointed out in the claims.

In the accompanying drawing,

Figure l'is an elevational view of apipe bowl reamer embodying myinvention, illustrated in operative self-adjusted reaming engagementwith a pipe, the latter being shown partly in elevation and partly insection; and

Figures 2 and 3 are, respectively, side and end elevational views of thereamer.

Referring now morein detail and by reference characters to the drawing,which illustrates a preferred embodiment of my invention, A indicatesthe body of the reamer, which is preferably constructed of a single orunitary section of suitable metallic strip material first bentintermediate its ends into substantially U-shape to include a bight 1and a pair of yieldingmembers or legs 2, 2, normally disposed lengthwisein spaced approximately parallel relation. At the free or outer ends ofboth the legs 2, the strip is then gently, asat 3, reversely bent toprovide a pair of suitably elongated so-called blades 4, l, which arenormally yieldingly disposed in suitably spaced approximately parallelrelation to their respective supporting legs 2, the strip at the freeends of the blades 4 being further bent to provide oppositely disposedoutwardly presented lateral end-members 5, 5, which are loosely disposedfor movement in approximately the plane of the bight 1 and whichfunction to stiffen the legs 4:, 4;, at their free ends.

Fitting over and upon the body A to generally conceal the bight 1 andthe free ends 5 of the blades 4, and riveted or otherwise permanentlyfixed, as at 6, to the bight 1, is an inverted U-shaped member 7, whichserves as a finger gripping member for the reamer.

v In use and operation, the, rcamer is adapted forendwlse insertion intothe pipe-bowl to be cleaned or reamed, as illustratedin ,Figure 1, andit will be evidentthat, the legs 2 and blades 4 being free to yieldrelatively to one another in the line of the length of the finger-grip7, or, as it maybe described, in a plane transverse to their lengtli,the legs 2 and blades 4 readily automatically, so to'speak,adjustthemselves to tightly fit the particular bowl B being cleaned orreamed. In like manner, the reamer is self-adjustable to fit pipe-bowlsof different sizes or diameters. The reamer being so fitted in the bowland twisting or turning movement being then imparted thereto through thefinger-grip 7, the blades 4 elficiently function to ream or cut forremoval any tobacco-crust or the like without in the slightest damagingthe bowl. It will be observedthat the legs 2 and the blades 4 at theirjoint or connection 8 are preferably so shaped to approximately conformfor reaming effectiveness to the base of the pipe-bowl, as shown.

I am aware that changes in the form, construction, arrangement, andcombination of the several parts of'my new pipe-bowl reamer may be madeand substituted for those herein shown and described without departingfrom the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. A pipe-bowl reamer comprising a pair of normally spacedblade-supporting members yieldingly movable relatively to each other,and a pair of elongated blades connected to and supported by saidmembers, the blades being normally spaced from said members andyieldingly movable relatively to each other and to said members.

2. A pipe-bowl reamer comprising a fin ger grip, a pair of normallyspacedbladesupporting members fixed at an end to the grip and beinglenthwise obliquely yieldable relatively to each other, and a pair ofelongated blades connected at an end to said members and having theiropposite ends loosely disposed for movement adjacent the finger grip,the blades being normally in spaced relation to said members and to eachother and being yieldingly movable relatively to each other and to saidmembers.

Ill!

3. A pipe-bowl reainer comprising a pair of blade-supporting membersadapted at an end for insertion into the pipe-bowl, and a pair ofelongated blades respectively connected at an end to said ends of, andsupported by, said members, the blades at their opposite ends beingnormally spaced from said members and yieldingly movable rela-J tivelyto each other and to said members.

4:- A pipe-bowl reainer comprising a finger grip, a pair ofblade-supporting members fixed at an end to the grip and adapted attheir other end for insertion into the pipe-bowl, and a pair ofelongated blades respectively connected at an end to said last namedends of said members, said blades extending in opposed relation to saidmembers and having their opposite ends loosely disposed for movementadjacent the finger grip, the blades at their free ends being normallyin spaced relation to said members and to each other and beingyieldingly m0vable relatively to each other and to said members.

5. A pipe-bowl reamer comprising a finger grip, in combination with aflexible body constructed of a single seetlon of strip metallicmaterialbent and formed to include a normally spaced and yieldinglymovable relatively to each other in the length thereof.

In testimony whereof, I have signed my name to this specification.

ALBION M. GOLDSTEIN.

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